diff --git a/composer.json b/composer.json
index c809a11..1546a53 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
   ],
   "license": "MIT",
   "require": {
-    "php": ">=8.3",
+    "php": ">=8.4",
     "ext-json": "*",
     "ext-pdo": "*",
     "game-worker/kiri-pool": "~v1.0"